1. The giant otter is a large aquatic mammal with a dark brown shiny coat and cream-colored streaks and patches on the chin and throat.
巨型水獭是一种大型水栖动物，具有棕黑色善良外皮以及奶油色条文，在脸颊和喉咙处有板块。
2. Nail psoriasis was diagnosed based on the presence of nail signs, such as irregular pitting, salmon-colored patches, and detachment from the nail bed.
银屑病甲的诊断依靠指甲的外观，比如不规则空洞、鞘膜积液以及从甲床中脱离。